CVE-2025-22041

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix use-after-free in ksmbd_sessions_deregister()

In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed through the global session table can be accessed again through ->sessions of connection.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

April 16, 2025

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated May 21, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 4193-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f0eb3f575138b816da74697bd506682574742fcd
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ca042cc0e4f9e0d2c8f86dd67e4b22f30a516a9b
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a8a8ae303a8395cbac270b5b404d85df6ec788f8
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ed0e9d2f410f63525afb8351181eea36c80bcf1
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/33cc29e221df7a3085ae413e8c26c4e81a151153
generic

ksmbd: fix use-after-free in ksmbd_sessions_deregister() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/15a9605f8d69dc85005b1a00c31a050b8625e1aa

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-86.87~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-oem-24.04b (6.11.0-1024.24) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure (6.14.0-1007.7) @ plucky2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1038.39~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1041.44.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1041.45) @ noble2026-05-21ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1041.43~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2032.33) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1044.50+fips1) @ noble2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-28.28) @ oracular2026-05-21ubuntu
ubuntulinux-tools-oracle-64k (6.14.0-1007.7) @ plucky2026-05-21ubuntu
ubuntulinux-tools-azure-6.11 (6.11.0-1018.18) @ oracular2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-22.22) @ plucky2026-05-21ubuntu
ubuntulinux-tools-lowlatency-64k (6.11.0-1015.16) @ oracular2026-05-21ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-86.87.1~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1036.37) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-nvidia-lts-24.04 (6.8.0-1029.32) @ noble2026-05-21ubuntu
linuxKernel @ 6.1.134—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.129-1~deb11u1 (7 versions)6.1.137-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (37 versions)6.1.135-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.25-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.25-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(18)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 182 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-16 14:06 UTCEPSS rescore
  4. 2026-09-16 05:13 UTCEPSS rescore
  5. 2026-09-15 03:09 UTCEPSS rescore
  6. 2026-09-13 16:46 UTCEPSS rescore
  7. 2026-09-12 15:00 UTCEPSS rescore
  8. 2026-09-11 14:51 UTCEPSS rescore
  9. 2026-09-11 09:35 UTCEPSS rescore
  10. 2026-09-10 09:33 UTCEPSS rescore
  11. 2026-09-08 21:59 UTCEPSS rescore
  12. 2026-09-07 16:00 UTCEPSS rescore
  13. 2026-09-07 12:48 UTCOSV refresh
  14. 2026-09-06 13:46 UTCEPSS rescore
  15. 2026-09-06 13:46 UTCEPSS rescore
  16. 2026-09-05 15:28 UTCEPSS rescore
  17. 2026-09-04 05:05 UTCEPSS rescore
  18. 2026-09-02 14:11 UTCEPSS rescore
  19. 2026-09-01 13:52 UTCEPSS rescore
  20. 2026-09-01 04:38 UTCEPSS rescore
  21. 2026-08-30 19:16 UTCEPSS rescore
  22. 2026-08-30 01:21 UTCEPSS rescore
  23. 2026-08-28 21:40 UTCEPSS rescore
  24. 2026-08-27 14:24 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-08-23 00:18 UTCEPSS rescore
  2. 2026-08-21 23:48 UTCEPSS rescore
  3. 2026-08-20 22:54 UTCEPSS rescore
  4. 2026-08-20 22:01 UTCOSV refresh
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:47 UTCEPSS rescore
  7. 2026-08-17 13:46 UTCEPSS rescore
  8. 2026-08-16 14:55 UTCEPSS rescore
  9. 2026-08-16 02:13 UTCEPSS rescore
  10. 2026-08-16 02:13 UTCEPSS rescore
  11. 2026-08-15 01:29 UTCEPSS rescore
  12. 2026-08-13 21:59 UTCEPSS rescore
  13. 2026-08-12 13:50 UTCEPSS rescore
  14. 2026-08-10 23:59 UTCEPSS rescore
  15. 2026-08-09 13:45 UTCEPSS rescore
  16. 2026-08-07 16:26 UTCEPSS rescore
  17. 2026-08-06 13:46 UTCEPSS rescore
  18. 2026-08-05 19:16 UTCEPSS rescore
  19. 2026-08-05 13:59 UTCEG score recompute
  20. 2026-08-05 13:59 UTCVendor advisory
  21. 2026-08-05 13:59 UTCGHSA enrichment
  22. 2026-08-04 15:09 UTCEPSS rescore
  23. 2026-08-04 10:37 UTCEPSS rescore
  24. 2026-08-03 10:35 UTCEPSS rescore
  25. 2026-08-02 02:25 UTCEPSS rescore
  26. 2026-08-01 04:15 UTCEPSS rescore
  27. 2026-07-30 16:27 UTCEPSS rescore
  28. 2026-07-30 01:29 UTCEPSS rescore
  29. 2026-07-28 15:35 UTCEPSS rescore
  30. 2026-07-27 21:55 UTCOSV refresh
  31. 2026-07-27 14:12 UTCEPSS rescore
  32. 2026-07-26 14:53 UTCEPSS rescore
  33. 2026-07-25 14:17 UTCEPSS rescore
  34. 2026-07-24 14:17 UTCEPSS rescore
  35. 2026-07-23 14:17 UTCEPSS rescore
  36. 2026-07-23 02:50 UTCEG score recompute▲ 1.00
  37. 2026-07-22 14:07 UTCEPSS rescore
  38. 2026-07-22 14:07 UTCEPSS rescore
  39. 2026-07-21 15:24 UTCEPSS rescore
  40. 2026-07-20 17:07 UTCEPSS rescore
  41. 2026-07-19 14:30 UTCEPSS rescore
  42. 2026-07-19 14:30 UTCEPSS rescore
  43. 2026-07-19 02:28 UTCEPSS rescore
  44. 2026-07-19 02:28 UTCEPSS rescore
  45. 2026-07-18 10:03 UTCEPSS rescore
  46. 2026-07-16 17:02 UTCEPSS rescore
  47. 2026-07-15 16:57 UTCEPSS rescore
  48. 2026-07-15 16:57 UTCEPSS rescore
  49. 2026-07-15 01:59 UTCEPSS rescore
  50. 2026-07-13 22:29 UTCEPSS rescore
  51. 2026-07-13 22:29 UTCEPSS rescore
  52. 2026-07-13 06:12 UTCEPSS rescore
  53. 2026-07-13 06:12 UTCEPSS rescore
  54. 2026-07-12 05:46 UTCEPSS rescore
  55. 2026-07-12 05:46 UTCEPSS rescore
  56. 2026-07-11 08:27 UTCEPSS rescore
  57. 2026-07-11 08:26 UTCEPSS rescore
  58. 2026-07-10 14:22 UTCOSV refresh
  59. 2026-07-09 19:09 UTCEPSS rescore
  60. 2026-07-08 15:14 UTCEPSS rescore
  61. 2026-07-07 13:45 UTCEPSS rescore
  62. 2026-07-06 16:26 UTCEPSS rescore
  63. 2026-07-06 02:22 UTCEPSS rescore
  64. 2026-07-06 02:22 UTCEPSS rescore
  65. 2026-07-05 02:30 UTCEPSS rescore
  66. 2026-07-04 06:30 UTCEPSS rescore
  67. 2026-07-01 15:06 UTCEPSS rescore
  68. 2026-06-30 23:21 UTCEPSS rescore
  69. 2026-06-30 23:21 UTCEPSS rescore
  70. 2026-06-29 14:06 UTCEPSS rescore
  71. 2026-06-28 14:07 UTCEPSS rescore
  72. 2026-06-28 14:07 UTCEPSS rescore
  73. 2026-06-28 04:55 UTCEPSS rescore
  74. 2026-06-28 04:55 UTCEPSS rescore
  75. 2026-06-27 03:08 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-22041?
CVE-2025-22041 is a high vulnerability published on April 16, 2025. In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdsessionsderegister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel. session that is freed…
When was CVE-2025-22041 disclosed?
CVE-2025-22041 was first published in the National Vulnerability Database on April 16, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-22041 actively exploited?
CVE-2025-22041 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.9% of all scored CVEs.
What is the CVSS score of CVE-2025-22041?
CVE-2025-22041 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2025-22041?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-22041, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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